Solvothermal Synthesis, Structural Characterization and Properties of Two New Layered Lanthanide Sulfates

doi:10.1007/s40242-013-3060-4

Abstract

Abstract:

Two new layered lanthanide sulfates,[C₁₀H₁₀N₂][Pr₂(SO₄)₄(H₂O)₂](1)and[H₅O₂][Sm(SO₄)₂(H₂O)₃](2)were synthesized via solvothermal reaction and structurally characterized by single-crystal X-ray diffraction(XRD), infrared(IR) spectroscopy, thermal analysis, fluorescent spectra and inductively coupled plasma(ICP). Crystal data for compound 1, triclinic, P space group, a=0.8052(4) nm, b=0.9438(4) nm, c=1.4990(7) nm, α=79.450(5)°, β= 83.703(5)°, γ=74.048(5)°, V=1.0746(9) nm³, Z=2; for compound 2, monoclinic, P2₁/c space group, a=0.6599(11) nm, b=1.8940(3) nm, c=0.8765(14) nm, β=96.596(2)°, V=1.0883(3) nm³, Z=4. Structure analysis indicates that both the compounds exhibit a 2D corrugated layer structure, with protonated 4,4'-bipyridine cations and water dimmers (H₅O₂)⁺ located between the inorganic layers of compounds 1 and 2, respectively. Luminescent properties of compounds 1 and 2 were further investigated.

Key words: Solvothermal synthesis, Open-framework, Lanthanide sulfate, Layered structure, Luminescence

LÜ Yun, ZHANG Deng, XU Yan. Solvothermal Synthesis, Structural Characterization and Properties of Two New Layered Lanthanide Sulfates[J]. Chemical Research in Chinese Universities, 2013, 29(5): 831-836.

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